Magnetoresistive (MR) sensors have leads that overlap a MR structure
and distribute current to the MR structure so that the current is not concentrated
in small portions of the leads. An electrically resistive capping layer can be
formed between the leads and the MR structure to distribute the current. The leads
can include resistive layers and conductive layers, the resistive layers having
a thickness-to-resistivity ratio that is greater than that of each of the conductive
layers. The resistive layers may protect the conductive layers during MR structure
etching, so that the leads have broad layers of electrically conductive material
for connection to MR structures. The broad leads conduct heat better than the read
gap material that they replace, further reducing the temperature at the connection
between the leads and the MR structure.